No it is not hard to do and I forgot you could turn the patterns off. The only thing to be concerned about is that you have to make sure that the Polygons for the painted areas are in the right shape... most of them would already have to be. But I was planning on marking all the panel lines using the pattern so that you could use that as a reference. If I do the colors then you would not be able to print just the reference lines. It is all or none. So the choices are white pattern with the panel lines as I originally indented, slightly grey pattern with the panel lines so that you can tell the tabs apart from the model, or colored pattern (red, gold, and silver) with the panel lines. As I said, with the last two options, in order to get the panel lines you would have to print the whole grey or colored pattern.
Also... Introducing My Iron Patriot helmet pep file:
http://www.therpf.com/f24/iron-patriot-hd-helmet-build-169711/#post2618551
Enjoy.